Orchard heater



Aug. 25, 1931. 5. J. HARBAN 13 9 ORCHARD HEATER Filed April 12, 1927 INVENTOR. S.J. HAR BAN 3| PBY 1 A TTORNEY.

Patented Aug. 25, 1931 T UNITED TATE-s STEVEN J. I-IARBAN, F RIVERSIDE, CALIFORNIA.

' o nonnnn nna rnn Applicationfil ed. April 12,1927. Serial nm saon,

This invention relates to improvements in orchard heaters.

The general ob ect of th1s lnventlon is to j provide an improved orchard heater which will burn a low grade of oil efficiently and Without producing smoke. V V

Another object of thisinvention is to provide an orchard heater which will radiate M alarge volume of heat from all its surfaces. Another object of my inventionis to provide an orchard heater wherein the heating unit, the burner, and the fuel supply unit are separate andremovably mounted on a common base.

Another object of this invention is to provide a burner for an orchard heater wherein a novel draft means is provided.

Still another object of this invention is to PM provide an orchard heater having a superheated air chamber.

A specific object of this invention is to pro vide novel means for detachably positioning the burner and the heat chamber on the base.

Other objects and'advantages of this invcntion will be apparent from the following description taken in connection with the accompanyin drawings wherein Fig. 1 is a central longitudinal section of N m an orchard heaterembodying the features of my invention.

Fig. 2 is a section of the orchard'heate-r taken on line 2-2 of Fig. 1.

Fig. 3 is a face view of one of the positioning fingers and a portion of the heat chamber. p

- Fig. 4 is a section taken on line 44 of Fig. 3. 1 i

Fig. 5 is a section taken on line 55 of I p Fig. 4. i Fig. 6 is a fragment of the heat chamber wall showing a novel form of vent therein. Fig. 7 is a section taken on line 7-7 of Fig. 6, and i Fig. 8' is a modified form of heat chamber. Referring to the drawings by reference characters I have indicated an orchard heater embodying the features of my invention at 10. My improved orchard heater comprises a heater 11, a fuel supply tank 12 and a burner 13 mounted on a support 14.

The heater 11 is preferably cylindrical 'and' comprises a body portion 15, a reduced neck 16 and astack 17. The stack 17 is of smaller diameter than the neck 16 and extends from 1 a point above the top of the neck through 5 5 the neck to a point below the neck, thus form,- ing an annular. chamberlWbetween the neck 16 and the stack 17$ The stack 17 may have a soot screen 18' provided therein adjacent its lower end and a cap 19 may be provided at the top thereof to cover the stack opening'when the'heater is no; in operation;

The cap 19 is shown as attached to the stack 17 by a strip of spring steel 20 which may be secured to the stack by welding or in any other suitable manner and which will tend to normally retain the cap19 in an open position as shownby the dotted lines in Fig. 1. For retaining the cap 19 in a closed'positiona spring. latch 21 may be provided'on the stack 17 'adapted'to engage a lip '22 on the-cap 19.

The neck 16 of the heater is provided with a plurality of vents 23 and the body 15'may be provided with a plurality of vents '23 shown as of circular form. The vents 28 are made by forming circular apertures 24 spaced apart in the side wall of the neck and'then joining the tops of the apertures 24 by a slit and bending the freed'm'etal inwardly'at'an angle as at 25, as clearly shown in Figs. 6 and 7. I

The support 14 'of my device consists of a frame 26 having upwardly projecting fingers 27 thereon adjacent one end and upstanding legs 28 thereon adjacent the other end.

As shown in Figs. 3, 4 and 5. each single finger 27 comprises a body portion 29'having upwardly'exten'ding port-ions 30 and inwardly extending arms 31 formed thereon. The fingers are preferably secured to the frame 26 by welding but may be secured thereto in any other suitable manner. i

The legs 28 have a flanged annular. member 32 secured thereto in any suitable manner in which and on which the fuelsupply tank 12 rests when in an operative position. The fuel tank 12 may be provided with a handle 33 and a cover'34.

. legs '39 have slots39' provided therein.

When in an operative position the heater 11 rests on the arms 31 of the fingers 27 and is retained in position by providing slots 35 in the side walls of the body at the lower edge thereof. The arms 31 supportthe heater 11 while the upwardly extending portions 30 prevent any lateral movement of the heat er. A slot is also provided adjacent the lower edge of the heater body 15 to accommodate the fuel supply pipe.

The burner 13 which I preferto use con Theburne'r 13 is preferably made of cast ironsince this material retains heat well. and will stand up under a high degree of heat longer than other similar materials.

When in an operative position the burner 13 is adaptedtobe supported by the arms 31 of the fingers 27 and is retained in position by placing the slots 34 overthe arms 31.

Directly below the burner 13 and disposed on the supportl I provide a pan or tray which serves to catch any overflow of oil from the burner 13 and which also serves to hold fluid such as gasoline for priming the burner. i

The fuel for burning is supplied to the burner 13 through a pipe 41 from the fuel tank 12. This pine 41 extends through a slot 35in the body 15 of the heater 11 to the center of the burner 13. A valve 11 is provided in the pipe 41 for regulating the flow of fuel from the fuel supply tank and a bracket 42 secured to the frame 1 1 may be provided for supporting the pipe 41.

When it is desired to operate my improved orchard heater a. priming fluid such as gasoline is placed in the pan 40 and lighted, the fuel oil is then fed to the burner 13 through the piped-1 and the operation of the heater is started and automatically continued. the amount of fuel passing to the burner being controlled by the valve 11'. The draft for the burning fuel enters from under the heater body 15 and through the-apertures 38 of the burner 13. As the heated airrises upwardly.

a portion of passes directly upand out of the stack 17 while the remainder'moves up and into the chamber 17'. The air which circulates in the chamber 17 is superheated by the air passing through the stack 17.

After the device has been in operation for a time the burner 13 will become white hot and the oil coming out of the pipe 41 will be vaporized practically as soon as it emerges therefrom. thus forming a gas which produces a very small quantity of smoke. Also when the device has been in operation the whole of the heater 11 will be heated to a glowing degree.

As the air in the chamber 17 becomes heated to a very high degree by the stack 17 and the side walls of the'neck 16 it passes out through the vents 23 in the side walls of the neck. While the vents 23allow the heated air to escape from the chamber 17' their peculiar pitch ,and construction will not, in

rainyweatherpermit' water. to run down the outside of the neck and then pass to the inside.

In Fig. 8 I have shown a modified form of heater which may be placed on the support 14$ This heater is of conical form and has a wholly internal stack 51 which may be provided with a soot screen 52 similar to the soot-screen18 of heater 11. A superheated air chamber 53' is formed'in this heater between the inner walls of the heater 50 and thestack 51. The heater 50 may also be provided with a plurality of vents 54 similarto the vents 23 of heater 11, and a plurality of vents 55 similar to the vents 23 of heater 11.

' The stack 51 is preferably tapered inwardly towards the bottom so that a plurality of the heaters 50 may be nested together for storage. It will be understood that if desired, for reasons of economy, the stack 51 of heater 50' may be omitted.

' The various partsofthe heater 11 may also be proportioned and tapered as to allow a for storage. When the heaters 11 are made for nesting the caps 19 are omitted.

From: the foregoing description it will be apparent thatI have provided a novel form of orchard heater which will give off a very high degree of-heat and which while simple in construction is highly efficient in use;

It will be understood that if desired a stack of a size which may be 5 inches by 2'feet may be placed upon the top of the stack 17 or otherwise if desired.

What I claim is:

1. In a burner, a circular base, a plurality of spaced upstanding hollow portions on and integral with said base, certain of said portions including adjacent side walls extending convergingly upward,said upstanding portions being disposed so that the adjacent side walls form upwardly directed wedge'shaped troughs, said side walls having apertures therethrough, said base having transverse channels therein between said upstanding portions and having a peripheral channel, said transverse and peripheral channels com municating toform a fluid container.

2. In a burner, a circular base, a plurality of spaced upstanding hollow portions of segmental cross section on and integral with said base, said portions having open bottoms, certain of said portions including adjacent side walls extending converginglyupward from said base, said upstanding portions being disposed so that the adjacent radial side walls of the segments form upwardly directed wedge shaped troughs, said side walls having a pluralityvof apertures therethrough,

said base having intersecting transverse channels therein between said upstanding portions and having a peripheral channel, said transverse and peripheral channels communieating to form a fluid container.

In testimony whereof, I hereunto affix my signature.

STEVEN J. HARBAN. 

